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MySQL: Two Denial of Service vulnerabilities


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200705-11 / MySQL
Release Date May 08, 2007
Latest Revision May 08, 2007: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
dev-db/mysql < 5.0.38 >= 5.0.38, < 5.0 All supported architectures

Related bugreports: #170126, #171934


Two Denial of Service vulnerabilities have been discovered in MySQL.

2.  Impact Information


MySQL is a popular multi-threaded, multi-user SQL server.


mu-b discovered a NULL pointer dereference in when processing certain types of SQL requests. Sec Consult also discovered another NULL pointer dereference when sorting certain types of queries on the database metadata.


In both cases, a remote attacker could send a specially crafted SQL request to the server, possibly resulting in a server crash. Note that the attacker needs the ability to execute SELECT queries.

3.  Resolution Information


There is no known workaround at this time.


All MySQL users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-db/mysql-5.0.38"

4.  References


Page updated May 08, 2007

Summary: This is a Gentoo Linux Security Advisory

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